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How to fix broken Lift Bolts

133K views 72 replies 35 participants last post by  GSBoek  
#1 · (Edited)
Ok this is how I do this. Its pretty much like the TSB with my own twist

I forgot to take pics of removing the coils but thats pretty self explanatory.

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Unplug the power steering sensor
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Coils removed and harness lifted out of the way
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Unbolt engine breather
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Remove (9) 10mm bolts around valve cover. dont for get the (2) 10mm bolts above the lift actuator that hold the brake booster line and fuel rail
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Lift up on the PCV valve to pop the valve cover up and wiggle it off the engine breather hard pipe
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Valve cover off
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These are the "Lift Bolts" actual name for them is flange bolt. Most dealer parts guys have no clue what a lift bolt is
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This is the exhaust side, it usually does not break but you can see the wear on it
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Loosening the intake bolt
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Yep broken as usual
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Its hard to see in these pics but the intake shaft has rotated all the way out of range and started to slide toward the cam gear
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Clean the cam gears off really good with brake cleaner on a rag
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Mark the cam gears and the chain so you can re-align them and keep the timing set
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Unbolt the cam caps. I only did the intake cam first but you can do the exhaust also. just make sure that you secure the chain if you do both now.
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Remove the intake cam, you have to finagle it out, this is where if you take the exhaust cam out first, its easier to get the intake cam out.
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Intake cam out
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Here you can see how the shaft has worked its way out
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Remove battery

Its easier to make room with the brake booster line out of the way, unclamp it off the intake manifold and move it out of the way
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These are the ECU grounds. remove both of them off the lift actuator
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Unplug the lift OCV and oil pressure sensor. It also help to unplug the water temp sensor on the head under the lift actuator
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remove the (3) 10mm bolts and (2) 10mm nuts holding the lift actuator on the head
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You can see the lift oil filter screen here
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Life actuator removed, here you can see the gasket, remove that and save it for later
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Using a 3/8 drive extension, tap on the shaft to push it out of the head
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Make sure you out a rag under the shaft to prevent the broken piece from falling into the engine
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Here you can see the broken bolt exposed
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The broken bolt
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This step is a little difficult, carefully use a prybar to push the shaft back in. Since this shaft had also rotated I had to use a screwdriver in the notch in the shaft and turn the shaft at the samt time I pushed the shaft back in.
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The new bolts
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Using my highly calibrated hads, tighten the new bolts good and snug, these newer lift bolts are pretty strong so you can torque them good and not strip them, but be careful, the head can still strip.
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This is the point I realized that I had to remove the exhaust cam. You need to get it out of the way to reset the timing chain tensioner. Ill get on that soon.
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Secure the timing chain with a ziptie.
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Looking down under the timing chain guide, you can see the chain tensioner. This is a difficult part. What you have to do is unbolt the tensioner behind the engine. Push it out untill it hits the belt tensioner. Rotate the chain tensioner so you can see the catch and teeth. Push the tensioner back into the engine and use a single nut to hold it in place. (sorry i have no pics of this) using a long screwdriver you will push the plunger back in. Use a long skinny flathead screwdriver to push on the catch so the plunger will slide in. Once you get it pushed back in, use the flat screwdriver to move the hook in place.
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The is another tensioner, here you can see the plunger and catch that needs to be pushed in.
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Here you can see pushing in on the catch will let you push the plunger back in
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Hook latched in, This is what you want to acomplish. Once you get the plunger reset, you have to remove the nut holding the tensioner in place and carefully push it back out of the engine, careful not to make the hook slip or you will have to do it all over again

Note: If you have a 6 sided 17mm wrench you can loosten the belt tensioner, and the 12mm nut on the top of the tensioner and slide it out of the way. This way you can remove the chain tensioner and to it like in the above pics.
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Once you push the tensioner back out, re-install the cams and make sure you timing marks are lined up
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Start installing the cam caps. they are labeled I2 I3 I4 and E2 E3 E4 etc. with arrows pointing to the front of the engine. make sure you install them in the right order
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Use some assembly lube if you want
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Tighten the cam caps just hand tight starting from the middle out
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Torque the cam caps from the center out to 15lbs
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Once the cams are tight, push the chain tensioner back in and tighten it back down. put the car in 6th gear and let off the parking brake. rock the car untill you hear the chain tensioner pop out and the chain gets tight.

Install the lift actuator , gasket first and the filter
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Install valve cover, the way I do it is first get the breather hard line studs started, then set the valve cover down. Attach the ECU ground and sensors that you unplugged
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Tighten valve cover down with the (9) 10mm bolts
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Attach the breather hoses
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Reach behind engine and plug in the power steering sensor
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Install the coils and tighten them down
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Finish putting plastics back on and re-install battery.
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#3 ·
good stuff Smaay. I may finally attempt to fix my busted lift bolt now.
 
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#4 ·
This really is an excellent guide - thanks Smaay for putting it together - all those pictures are a fantastic help!

As it turned out, I don't have broken lift bolts, but I did need to take the cams out to inspect the rockers.

As I suspected I had a great deal of trouble resetting the timing chain tensioner with it still in the engine - I could reset the plunger but I couldn't latch the hook. I think I've found a really easy way of getting it out of the engine though:

The problem is that the belt-tensioner arm is in the way, solution - move it out of the way by removing the belt, and then undoing both the fasteners on the tensioner spring so that you can simply slide that out of the way. The main bolt on the tensioner is torqued to 100Nm and is a PITA to get at, but these bolts aren't too bad at all. Once the tensioner spring is off, you can rotate the tensioner arm to clear the timing-chain tensioner and pop it out.

Reassembly looks simple, but I've not tried it yet.
 
#5 ·
My bolt is broken as well..and I want to try doing this method to save myself some money on labor charges. I've been reading this method and "Phillycheese's" thread and still alittle confused. Do I need to jack up the engine? I'm still a little baffle on the belt tensioner and the plunger reset sequence. If anyone has some more info on this, that'll be helpful. It appears that the other steps I could do except for the ones mentioned.
Thanks in advance,
Nick
 
#6 ·
My bolt is broken as well..and I want to try doing this method to save myself some money on labor charges. I've been reading this method and "Phillycheese's" thread and still alittle confused. Do I need to jack up the engine? I'm still a little baffle on the belt tensioner and the plunger reset sequence. If anyone has some more info on this, that'll be helpful. It appears that the other steps I could do except for the ones mentioned.
Thanks in advance,
Nick
No the engine doesnt need to be jacked up.

For the plunger you must dissengage the teeth from the shaft by pushing of the edge of the lock mechanism.

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#13 ·
I was working on lift bolt replacement in my garage and did the exact same thing. That's when I called the tow truck and sent it to Toyota. Nifty, eh?
 
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#16 ·
I put a filter in front of the first oil change and it didnt come out. Its been over 3,000 miles with 2 oil changes and I havent had any issues so its staying there until I need to rebuild the motor.
 
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#24 ·
Quick question. How do I remove the shaft? The chain is too tight for it to move. What am I doing wrong?
Not fully reading the thread. Check the TSB method, it worked fine for me.
 
#28 ·
This is probably a really dumb question but I would love to make sure 100%

The only reason you had to remove both camshafts is because both of your bolts were broken right? Say only the bolt to my intake camshaft is broken, I don't have to touch my exhaust cam correct?
 
#45 ·
I thought Smaay stated that he realized he had to remove the Exhaust cam in order to get to the chain tansioner. My intake lift bolt is broken and I want to tackle this job, but I am intimidated by the whole chain tensioner part.
 
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#31 ·
Ok, here it comes, another dumb question:

If my lift bolts are not broken, do I need to do anything further pass picture 18? Of course need to install new bolts.

Oh, and what are those rims on the yellow celica? Those are so HOT!

Super great write up. Im so happy I found this!!!
 
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